There are given differing population numbers in different sources.
2,764,971 – number of inhabitants resident in 42 adjacent cities and towns in the conurbation, in an area of 2,411 km2, population density: 1,146.82/km2 (2,970.2/sq mi) (1 January 2008) – on the basis of data from the Central Statistical Office in Poland[7].
| City | Population | Area (km2) | Density (km-2) |
| Katowice | &0000000000312201.000000312,201 | &0000000000000164.670000164.67 | &0000000000001896.0000001,896 |
| Sosnowiec | &0000000000222586.000000222,586 | &0000000000000091.06000091.06 | &0000000000002444.0000002,444 |
| Gliwice | &0000000000197393.000000197,393 | &0000000000000133.880000133.88 | &0000000000001474.0000001,474 |
| Zabrze | &0000000000189062.000000189,062 | &0000000000000080.40000080.40 | &0000000000002352.0000002,352 |
| Bytom | &0000000000184765.000000184,765 | &0000000000000069.44000069.44 | &0000000000002661.0000002,661 |
| Ruda Śląska | &0000000000144584.000000144,584 | &0000000000000077.73000077.73 | &0000000000001860.0000001,860 |
| Rybnik | &0000000000141080.000000141,080 | &0000000000000148.360000148.36 | &0000000000000951.000000951 |
| Tychy | &0000000000129776.000000129,776 | &0000000000000081.64000081.64 | &0000000000001590.0000001,590 |
| Dąbrowa Górnicza | &0000000000128795.000000128,795 | &0000000000000188.730000188.73 | &0000000000000682.000000682 |
| Chorzów | &0000000000113678.000000113,678 | &0000000000000033.24000033.24 | &0000000000003420.0000003,420 |
| Jaworzno | &0000000000095520.00000095,520 | &0000000000000152.670000152.67 | &0000000000000626.000000626 |
| Jastrzębie-Zdrój | &0000000000093939.00000093,939 | &0000000000000085.34000085.34 | &0000000000001101.0000001,101 |
| Mysłowice | &0000000000074912.00000074,912 | &0000000000000065.75000065.75 | &0000000000001139.0000001,139 |
| Siemianowice Śląskie | &0000000000071621.00000071,621 | &0000000000000025.50000025.5 | &0000000000002809.0000002,809 |
| Żory | &0000000000062008.00000062,008 | &0000000000000064.59000064.59 | &0000000000000960.000000960 |
| Tarnowskie Góry | &0000000000060975.00000060,975 | &0000000000000083.72000083.72 | &0000000000000728.000000728 |
| Piekary Śląskie | &0000000000059061.00000059,061 | &0000000000000039.98000039.98 | &0000000000001477.0000001,477 |
| Będzin | &0000000000058639.00000058,639 | &0000000000000037.37000037.37 | &0000000000001569.0000001,569 |
| Świętochłowice | &0000000000054525.00000054,525 | &0000000000000013.31000013.31 | &0000000000004097.0000004,097 |
| Wodzisław Śląski | &0000000000049132.00000049,132 | &0000000000000049.51000049.51 | &0000000000000992.000000992 |
| Oświęcim | &0000000000040520.00000040,520 | &0000000000000030.00000030.00 | &0000000000001351.0000001,351 |
| Chrzanów | &0000000000039452.00000039,452 | &0000000000000038.32000038.32 | &0000000000001030.0000001,030 |
| Knurów | &0000000000039449.00000039,449 | &0000000000000033.95000033.95 | &0000000000001162.0000001,162 |
| Mikołów | &0000000000038698.00000038,698 | &0000000000000079.20000079.20 | &0000000000000489.000000489 |
| Czeladź | &0000000000034072.00000034,072 | &0000000000000016.38000016.38 | &0000000000002080.0000002,080 |
| Czerwionka-Leszczyny | &0000000000028329.00000028,329 | &0000000000000037.63000037.63 | &0000000000000753.000000753 |
| Łaziska Górne | &0000000000021942.00000021,942 | &0000000000000020.07000020.07 | &0000000000001093.0000001,093 |
| Rydułtowy | &0000000000021915.00000021,915 | &0000000000000014.95000014.95 | &0000000000001466.0000001,466 |
| Trzebinia | &0000000000020128.00000020,128 | &0000000000000031.94000031.94 | &0000000000000630.000000630 |
| Bieruń | &0000000000019464.00000019,464 | &0000000000000040.67000040.67 | &0000000000000479.000000479 |
| Pyskowice | &0000000000019104.00000019,104 | &0000000000000030.89000030.89 | &0000000000000618.000000618 |
| Orzesze | &0000000000018907.00000018,907 | &0000000000000083.79000083.79 | &0000000000000226.000000226 |
| Radlin | &0000000000017711.00000017,711 | &0000000000000012.53000012.53 | &0000000000001413.0000001,413 |
| Libiąż | &0000000000017487.00000017,487 | &0000000000000035.85000035.85 | &0000000000000488.000000488 |
| Radzionków | &0000000000017163.00000017,163 | &0000000000000013.20000013.20 | &0000000000001300.0000001,300 |
| Lędziny | &0000000000016262.00000016,262 | &0000000000000031.48000031.48 | &0000000000000517.000000517 |
| Pszów | &0000000000014011.00000014,011 | &0000000000000020.44000020.44 | &0000000000000685.000000685 |
| Wojkowice | &0000000000009368.0000009,368 | &0000000000000012.79000012.79 | &0000000000000732.000000732 |
| Chełmek | &0000000000009079.0000009,079 | &0000000000000008.2700008.27 | &0000000000001098.0000001,098 |
| Imielin | &0000000000008010.0000008,010 | &0000000000000028.00000028.00 | &0000000000000286.000000286 |
| Miasteczko Śląskie | &0000000000007347.0000007,347 | &0000000000000067.83000067.83 | &0000000000000108.000000108 |
| Sławków | &0000000000006866.0000006,866 | &0000000000000036.67000036.67 | &0000000000000187.000000187 |
| Total | &0000000002764971.0000002,764,971 | &0000000000002411.7400002,411.74 | &0000000000001146.0000001,146 |